Shotcrete machine with compressor is to use compressed air to convey the pre-dampened mix through delivery hose to the nozzle to project the material onto the sprayed surface under high velocity, and then to form concrete support layer after the projected material coagulates and hardens. In recent years, with simple technology, special effect, economy cost, flexibility and high construction efficiency, shotcrete technology has widely been applying in construction, for example, railway and super highway engineering, underground engineering, tunneling, mining operations, hydropower projects and slope stabilization, etc. and showing prosperous future.
There exists two shotcrete ways: dry mix shotcrete and wet mix shotcrete.
For dry mix shotcrete machine, dry mix materials (not including water) according to the design ratio directly feed the mix into hopper (by hand or by feeder) compressed air introduced through air compressor conveys the mix to the nozzle through delivery hose water is added to the mix at the nozzle.
For wet mix shocrete machine, wet mix materials (including water) according to the design ratio directly feed the mix into hopper (by hand or by feeder) compressed air introduced through air compressor conveys the mix to the nozzle through delivery hose accelerator is added to the mix at the nozzle.